AMD Radeon R9 285X vs ATI Radeon HD 4770

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 285X and 512MB VRAM Radeon HD 4770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 285X 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 51.20GB/s)

1408 additional rendering cores

ATI Radeon HD 4770 's Advantages

Lower TDP (80W vs 200W)

Score

Benchmark

FP32 (float)

Radeon R9 285X +327%

4.104 TFLOPS

Radeon HD 4770

0.96 TFLOPS

Radeon R9 285X

VS

Radeon HD 4770

Graphics Card

Unknown

Release Date

Apr 2009

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

51.20GB/s

Render Config

-

SM Count

-

32

Compute Units

8

2048

Shading Units

640

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

Theoretical Performance

32.06 GPixel/s

Pixel Rate

12.00 GPixel/s

128.3 GTexel/s

Texture Rate

24.00 GTexel/s

-

FP16 (half)

-

4.104 TFLOPS

FP32 (float)

960.0 GFLOPS

-

FP64 (double)

192.0 GFLOPS

Graphics Processor

Tonga

GPU Name

RV740

Tonga XT (215-0851313)

GPU Variant

RV740 XT (215-0727019)

GCN 3.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

5 billion

Transistors

0.826 billion

366 mm²

Die Size

137 mm²

Board Design

200W

TDP

80W

550 W

Suggested PSU

250 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

4.1

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